var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
function addAge2(target) {
    console.log("addAge2开始工作 target=", target);
    // 所有target实例的age皆为18
    target.prototype.age = 18;
}
/* 给类的实例注入默认age属性值 */
var PersonII = /** @class */ (function () {
    function PersonII(name) {
        this.name = name;
    }
    PersonII = __decorate([
        addAge2
    ], PersonII);
    return PersonII;
}());
var person = new PersonII("hello");
console.log(person.age); // 18
